FIELD: metallurgy.
SUBSTANCE: cylindrical workpiece is flattened into a quadrangle between strikers. Then, the upset workpiece is subject to two-sided crimping by means of flat strikers. With that, the workpiece is turned through 90° after the first crimping transition. After a radial crimping operation is completed, the workpiece is deformed with reduction of its thickness till finite dimensions. Flattening is performed with observance of the specified dependence.
EFFECT: improving quality of semi-finished products at use of ingots and rolled or pressed rods and sintered workpieces as initial workpieces.
3 cl, 4 dwg
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